/* ========== AI Healthcare Color System ========== */
:root {
    --primary: #00B3C7;           /* AI Cyan */
    --secondary: #6B6BFF;         /* Deep Indigo */
    --accent: #FF8C42;            /* Signal Orange */
    --accent-dark: #FF6B35;
    --highlight: #B7F171;         /* Lime Glow */
    --neutral-dark: #0E0F12;      /* Midnight */
    --neutral-light: #F6F8FC;
    --neutral-mid: #2A2D35;
    
    /* Gradients */
    --g-cta: linear-gradient(135deg, var(--accent), var(--accent-dark));
    --g-ai: linear-gradient(135deg, var(--primary), var(--secondary));
    --g-neural: linear-gradient(90deg, 
        rgba(0,179,199,0.3), 
        rgba(107,107,255,0.3), 
        rgba(255,140,66,0.3));
    --g-bg-dark: linear-gradient(180deg, var(--neutral-dark), #15171B);
    --g-hero: linear-gradient(135deg, #0E0F12 0%, #1a1d28 50%, #15171B 100%);
    --nav-height: 86px;           /* default nav height */
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

html, body {
    width: 100%;
    height: 100%;
    min-height: 100%;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: var(--neutral-light);
    color: #121212;
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    position: relative;
}

/* Prevent body scroll when mobile menu open */
body.menu-open {
    overflow: hidden;
}

/* ========== Preloader ========== */
.mil-preloader {
    position: fixed;
    z-index: 9999;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background-color: rgb(0, 0, 0);
    transition: opacity 0.8s ease;
}

.mil-preloader.mil-hidden {
    pointer-events: none;
    opacity: 0;
}

.mil-preloader .mil-preloader-animation {
    opacity: 0;
    position: relative;
    height: 100vh;
    color: rgb(255, 255, 255);
}

.mil-preloader .mil-preloader-animation .mil-pos-abs {
    position: absolute;
    height: 100vh;
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.mil-preloader .mil-preloader-animation .mil-pos-abs p {
    opacity: 0;
    margin-right: 15px;
}

.mil-preloader .mil-preloader-animation .mil-pos-abs .mil-reveal-frame {
    position: relative;
    padding: 0 30px;
}

.mil-preloader .mil-preloader-animation .mil-pos-abs .mil-reveal-frame .mil-reveal-box {
    z-index: 4;
    position: absolute;
    opacity: 0;
    height: 100%;
    background-color: rgb(255, 152, 0);
}

.mil-h3 {
    font-size: 2.5rem;
    font-weight: 700;
    margin: 0;
}

.mil-muted {
    color: rgba(255, 255, 255, 0.9);
}

.mil-thin {
    font-weight: 300;
}

/* Preloader text colors and effects */
.mil-animation-1 .mil-h3:nth-child(1),
.mil-animation-1 .mil-h3:nth-child(3) {
    background: linear-gradient(135deg, #00B3C7, #6B6BFF);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 0 30px rgba(0, 179, 199, 0.5);
    animation: glow-cyan 2s ease-in-out infinite;
}

.mil-animation-1 .mil-h3:nth-child(2) {
    background: linear-gradient(135deg, #FF8C42, #FF6B35);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 800;
    text-shadow: 0 0 30px rgba(255, 140, 66, 0.5);
    animation: glow-orange 2s ease-in-out infinite;
    animation-delay: 0.2s;
}


.mil-animation-2 .mil-h3 {
    background: linear-gradient(135deg, #6B6BFF, #FF8C42, #00B3C7);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 800;
    font-size: 3rem;
    text-shadow: 0 0 40px rgba(107, 107, 255, 0.6);
    animation: pulse-rainbow 1.5s ease-in-out infinite;
}

@keyframes glow-cyan {
    0%, 100% {
        filter: drop-shadow(0 0 5px rgba(0, 179, 199, 0.3));
    }
    50% {
        filter: drop-shadow(0 0 20px rgba(0, 179, 199, 0.8));
    }
}

@keyframes glow-orange {
    0%, 100% {
        filter: drop-shadow(0 0 5px rgba(255, 140, 66, 0.3));
    }
    50% {
        filter: drop-shadow(0 0 20px rgba(255, 140, 66, 0.8));
    }
}

@keyframes glow-green {
    0%, 100% {
        filter: drop-shadow(0 0 5px rgba(183, 241, 113, 0.3));
    }
    50% {
        filter: drop-shadow(0 0 20px rgba(183, 241, 113, 0.8));
    }
}

@keyframes pulse-rainbow {
    0%, 100% {
        filter: drop-shadow(0 0 10px rgba(107, 107, 255, 0.5));
        transform: scale(1);
    }
    50% {
        filter: drop-shadow(0 0 30px rgba(255, 140, 66, 0.8));
        transform: scale(1.05);
    }
}

@media screen and (max-width: 992px) {
    .mil-preloader .mil-preloader-animation .mil-pos-abs {
        flex-direction: column;
    }
    
    .mil-preloader .mil-preloader-animation .mil-pos-abs p {
        margin-right: 0;
        margin-bottom: 10px;
    }
    
    .mil-h3 {
        font-size: 2rem;
    }
}

/* ========== EEG Wave Background Effect ========== */
.eeg-waves-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    pointer-events: none; /* Không chặn tương tác của người dùng */
    z-index: 0;
    opacity: 0.12; /* Giảm từ 0.2 xuống 0.12 - mờ hơn */
    overflow: hidden;
    transition: opacity 0.3s ease;
}

.eeg-waves-container:hover {
    opacity: 0.22; /* Giảm từ 0.35 xuống 0.22 - hover cũng mờ hơn */
}

.eeg-waves-container canvas {
    display: block;
    width: 100%;
    height: 100%;
}

/* Chỉ hiển thị trong hero section */
.container-wrapper:first-of-type {
    position: relative;
    overflow: hidden;
}

/* Remove old SVG wave styles - không cần nữa vì dùng Canvas */

/* Spike effects - Random neural spikes */
.eeg-spike {
    position: absolute;
    width: 2px;
    height: 60px;
    background: linear-gradient(180deg, transparent, var(--primary), transparent);
    animation: spikeAppear 5s ease-in-out infinite;
    opacity: 0;
    filter: blur(1.5px);
}

/* Horizontal flow animations */
@keyframes eegFlow1 {
    0% { transform: translateX(0); }
    100% { transform: translateX(50%); }
}

@keyframes eegFlow2 {
    0% { transform: translateX(0); }
    100% { transform: translateX(50%); }
}

@keyframes eegFlow3 {
    0% { transform: translateX(0); }
    100% { transform: translateX(50%); }
}

@keyframes eegFlow4 {
    0% { transform: translateX(0); }
    100% { transform: translateX(50%); }
}

/* Container variation for subtle vertical movement */
@keyframes eegVariationContainer {
    0%, 100% { transform: translateY(0) scale(1, 1); }
    33% { transform: translateY(-2px) scale(1, 1.08); }
    66% { transform: translateY(2px) scale(1, 0.95); }
}

@keyframes spikeAppear {
    0%, 100% { opacity: 0; transform: scaleY(0); }
    50% { opacity: 0.25; transform: scaleY(1); }
}

/* Selection */
::selection {
    background: var(--primary);
    color: #ffffff;
    text-shadow: none;
}

/* Navigation */
.nav_wrap {
    position: fixed;
    top: 0;
    width: 100%;
    background: white;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: 1000;
    transition: all 0.3s ease;
    border-bottom: 1px solid rgba(0, 179, 199, 0.1);
}

.nav_wrap.scrolled {
    box-shadow: 0 2px 30px rgba(0, 179, 199, 0.15);
    background: rgba(246, 248, 252, 0.98);
}

.nav_container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 clamp(1rem, 2.86vw, 3rem);
    position: relative;
    z-index: 1001;
}

.nav_border {
    border-bottom: 1px solid rgba(0, 179, 199, 0.08);
}

.nav_layout {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 0;
}

.nav_logo_link {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--neutral-dark);
    text-decoration: none;
    transition: all 0.3s ease;
    background: var(--g-ai);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: flex;
    align-items: center;
}

.nav_logo_img {
    height: 75px;
    width: auto;
    object-fit: contain;
    transition: transform 0.3s ease, filter 0.3s ease;
    /* background-color: white; */
}

.nav_logo_link:hover {
    filter: brightness(1.2);
}

.nav_logo_link:hover .nav_logo_img {
    transform: scale(1.05);
}

.nav-menu-2 {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

/* Hamburger toggle - hidden on desktop */
.nav-toggle {
    display: none;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 8px;
    margin-right: 6px;
    border-radius: 8px;
}

.nav-toggle:focus {
    outline: 2px solid rgba(0, 179, 199, 0.35);
    outline-offset: 2px;
}

.nav-toggle .bar {
    display: block;
    width: 24px;
    height: 2px;
    background: #0a0a0a;
    margin: 5px 0;
    transition: transform 0.3s ease, opacity 0.3s ease, background 0.3s ease;
}

.nav_wrap.scrolled .nav-toggle .bar {
    background: #0a0a0a;
}

/* OPEN STATE: đổi sang 3 vạch dọc đứng cạnh nhau */
.nav-toggle.active {
    flex-direction: row;
    gap: 6px;
}

.nav-toggle.active .bar {
    width: 2px;
    height: 20px;
    margin: 0;
}

.nav-toggle.active .bar:nth-child(1) { transform: translateX(0); }
.nav-toggle.active .bar:nth-child(2) { transform: translateX(0); }
.nav-toggle.active .bar:nth-child(3) { transform: translateX(0); }

.button_link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    color: var(--neutral-dark);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    border-radius: 50px;
    transition: all 0.3s ease;
    position: relative;
}

.button_link:hover {
    background: rgba(0, 179, 199, 0.1);
    color: var(--primary);
}

.icon-dot {
    width: 6px;
    height: 6px;
    background: var(--primary);
    border-radius: 50%;
    transition: all 0.3s ease;
}

.button_link:hover .icon-dot {
    transform: scale(1.5);
    background: var(--secondary);
    box-shadow: 0 0 10px var(--primary);
}

.contact-us-button {
    padding: 0.75rem 1.75rem;
    background: var(--g-cta);
    color: white !important;
    border-radius: 50px;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(255, 140, 66, 0.3);
}

.contact-us-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(255, 140, 66, 0.5);
}

.lang-toggle {
    font-weight: 600;
    color: var(--neutral-dark);
    text-decoration: none;
    padding: 0.5rem 0.75rem;
    border-radius: 50px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 2px solid rgba(0, 179, 199, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    min-width: 56px;
    height: 40px;
    background: white;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    position: relative;
    overflow: hidden;
}

.lang-toggle::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 179, 199, 0.08), transparent);
    transition: left 0.5s ease;
}

.lang-toggle:hover::before {
    left: 100%;
}

.lang-toggle:hover {
    background: rgba(0, 179, 199, 0.05);
    border-color: var(--primary);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 179, 199, 0.2);
}

.lang-flag {
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.lang-flag svg {
    width: 24px;
    height: 18px;
    display: block;
    border-radius: 2px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.15);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.lang-toggle:hover .lang-flag svg {
    transform: scale(1.15);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
}

/* Container Wrappers */
.container-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 6rem clamp(1rem, 2.86vw, 3rem);
    position: relative;
    z-index: 10;
    pointer-events: auto; /* Cho phép tương tác bình thường */
}

.container-wrapper > * {
    pointer-events: auto; /* Nhưng các element con vẫn tương tác được */
}

.container-wrapper:first-of-type {
    background: var(--g-hero);
    color: #ffffff;
}

.container-wrapper.green {
    background: linear-gradient(135deg, 
        rgba(0, 179, 199, 0.08) 0%, 
        rgba(183, 241, 113, 0.12) 100%);
}

.page-container {
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
    position: relative;
    z-index: 10;
    pointer-events: auto; /* Cho phép tương tác bình thường */
}

.page-container > * {
    pointer-events: auto; /* Element con vẫn tương tác */
}

/* Hero Section */
.hero-section-container {
    min-height: 85vh;
    display: flex;
    align-items: center;
    padding: 40px 0 30px;
    /* background: linear-gradient(180deg, #0a0a0a 0%, #1a1a2e 100%); */
    position: relative;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: clamp(2rem, 5vw, 6rem);
    align-items: center;
}

.hero-left-container {
    animation: fadeInUp 1s ease forwards;
    opacity: 0;
    position: relative;
    z-index: 10;
}

.line-wrapper {
    margin-bottom: 2rem;
    overflow: hidden;
}

.line {
    width: 60px;
    height: 3px;
    background: var(--g-ai);
    animation: lineExpand 1s ease forwards 0.3s;
    transform: scaleX(0);
    transform-origin: left;
    box-shadow: 0 0 10px var(--primary);
}

h1, .hidden-h1 {
    font-size: clamp(3rem, 6vw, 6.5rem);
    font-weight: 800;
    line-height: 1.05;
    margin-bottom: 1.5rem;
    background: var(--g-ai);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.02em;
}

.container-wrapper:first-of-type h1,
.container-wrapper:first-of-type .hidden-h1 {
    background: linear-gradient(135deg, #ffffff 0%, rgba(255, 255, 255, 0.85) 50%, var(--primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

h2 {
    font-size: clamp(2rem, 4vw, 3.8rem);
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.heading-2.green {
    color: var(--primary);
    position: relative;
    display: inline-block;
    padding-bottom: 1rem;
    padding-top: 0.5rem;
}

.heading-2.green::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 80px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), transparent);
    border-radius: 2px;
    animation: pulse 2s ease infinite;
}

.heading-2.green::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), #B7F171, transparent);
    border-radius: 2px;
    animation: slideRight 3s ease infinite;
}

.heading-2.blue {
    background: var(--g-ai);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
    display: inline-block;
    padding-bottom: 1rem;
    padding-top: 0.5rem;
}

.heading-2.blue::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 80px;
    height: 3px;
    background: linear-gradient(90deg, #6B6BFF, transparent);
    border-radius: 2px;
    animation: pulse 2s ease infinite;
}

.heading-2.blue::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, #6B6BFF, #00B3C7, transparent);
    border-radius: 2px;
    animation: slideRight 3s ease infinite;
}

.heading-2.orange {
    color: #FF8C42;
    position: relative;
    display: inline-block;
    padding-bottom: 1rem;
    padding-top: 0.5rem;
}

.heading-2.orange::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 80px;
    height: 3px;
    background: linear-gradient(90deg, #FF8C42, transparent);
    border-radius: 2px;
    animation: pulse 2s ease infinite;
}

.heading-2.orange::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, #FF8C42, #FFB347, transparent);
    border-radius: 2px;
    animation: slideRight 3s ease infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 0.4;
        transform: scaleX(1);
    }
    50% {
        opacity: 1;
        transform: scaleX(1.2);
    }
}

@keyframes slideRight {
    0%, 100% {
        width: 100%;
        opacity: 1;
    }
    50% {
        width: 70%;
        opacity: 0.6;
    }
}

.space-small {
    height: 1.5rem;
}

.text-body {
    font-size: clamp(1.05rem, 1.5vw, 1.25rem);
    color: #666;
    line-height: 1.8;
    margin-bottom: 2.5rem;
    max-width: 600px;
}

.container-wrapper:first-of-type .text-body {
    color: rgba(255, 255, 255, 0.75);
    font-size: clamp(1rem, 1.4vw, 1.15rem);
    line-height: 1.7;
}

.text-body.right {
    text-align: left;
}

/* Improve readability for non-hero sections: subtle translucent backdrop and slightly bolder text */
.container-wrapper:not(:first-of-type) .text-body,
.container-wrapper:not(:first-of-type) .tech-step-desc,
.container-wrapper:not(:first-of-type) .tech-step-title {
    background: rgba(255,255,255,0.6); /* light translucent panel */
    padding: 0.5rem 0.75rem;
    border-radius: 8px;
    display: inline-block;
    color: #2a2a2a; /* stronger color */
}

.container-wrapper:not(:first-of-type) h2,
.container-wrapper:not(:first-of-type) .heading-2,
.container-wrapper:not(:first-of-type) .tech-step-title {
    font-weight: 700; /* a bit bolder */
}

/* Button */
.button-3 {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 1.75rem;
    background: var(--g-cta);
    color: white;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.85rem;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 20px rgba(255, 140, 66, 0.3);
    position: relative;
    overflow: hidden;
}

.button-3::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.button-3:hover::before {
    width: 300px;
    height: 300px;
}

.button-3:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 35px rgba(255, 140, 66, 0.5);
}

.button-3_arrow-wrapper {
    transition: transform 0.4s ease;
}

.button-3:hover .button-3_arrow-wrapper {
    transform: translateX(5px);
}

/* Modern Monitor Wrapper */
.retro-tv-wrapper {
    position: relative;
    width: 100%;
}

.retro-tv-wrapper canvas {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 12px;
}

/* Hide antenna for modern style */
.tv-antenna {
    display: none;
}

/* Canvas Container - Modern Monitor Style */
.canvas-container {
    position: relative;
    width: 100%;
    height: auto;
    border-radius: 12px;
    overflow: visible;
    animation: floatCanvas 6s ease-in-out infinite;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    background: linear-gradient(135deg, #1a1a1a 0%, #0a0a0a 100%);
    padding: 8px;
    box-shadow: 
        0 0 0 1px rgba(255, 255, 255, 0.1),
        0 20px 60px rgba(0, 0, 0, 0.5),
        0 0 80px rgba(0, 179, 199, 0.2);
    margin-bottom: 40px;
}

/* Monitor screen bezel */
.canvas-container::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 8px;
    right: 8px;
    bottom: 8px;
    border-radius: 8px;
    border: 1px solid rgba(0, 179, 199, 0.3);
    pointer-events: none;
    z-index: 10;
    box-shadow: 
        0 0 20px rgba(0, 179, 199, 0.2) inset,
        0 0 40px rgba(0, 179, 199, 0.1);
}

/* Modern thin stand */
.canvas-container::after {
    content: '';
    position: absolute;
    bottom: -35px;
    left: 50%;
    transform: translateX(-50%);
    width: 120px;
    height: 30px;
    background: linear-gradient(180deg, #1a1a1a 0%, #0a0a0a 100%);
    border-radius: 0 0 8px 8px;
    box-shadow: 
        0 4px 15px rgba(0, 0, 0, 0.3),
        inset 0 1px 2px rgba(255, 255, 255, 0.05);
    z-index: -1;
}

/* Stand base - thin circular */
.canvas-container {
    margin-bottom: 50px;
}

.canvas-container > canvas {
    border-radius: 6px;
    position: relative;
    z-index: 5;
    min-height: 500px;
    width: 100%;
    display: block;
}

.canvas-container:hover {
    transform: translateY(-8px);
    box-shadow: 
        0 0 0 1px rgba(255, 255, 255, 0.15),
        0 25px 80px rgba(0, 0, 0, 0.6),
        0 0 100px rgba(0, 179, 199, 0.3);
}

/* Hero GIF - Simple Style (cho các sections khác) */
.hero-gif {
    position: relative;
    width: 100%;
    height: auto;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 25px 70px rgba(0, 179, 199, 0.3),
                0 0 40px rgba(45, 212, 191, 0.2);
    animation: none;
    border: 1px solid rgba(45, 212, 191, 0.3);
    transition: transform 0.3s ease;
    background: white;
}

/* Only hero section has float animation */
#hero .hero-gif,
#hero .canvas-container {
    animation: floatCanvas 6s ease-in-out infinite;
}

/* Override for canvas-container inside hero-gif */
.hero-gif.canvas-container {
    overflow: visible;
    background: linear-gradient(135deg, #1a1a1a 0%, #0a0a0a 100%);
    border: none;
    padding: 8px;
}

.hero-gif:not(.canvas-container):hover {
    transform: translateY(-5px);
    box-shadow: 0 30px 80px rgba(0, 179, 199, 0.4),
                0 0 50px rgba(45, 212, 191, 0.3);
}

.hero-gif:not(.canvas-container) img,
.hero-gif:not(.canvas-container) video {
    display: block;
    width: 100%;
    height: auto;
    border-radius: 20px 20px 0 0;
}

.image-caption {
    padding: 1rem 1.5rem;
    background: linear-gradient(135deg, rgba(0, 179, 199, 0.1), rgba(107, 107, 255, 0.1));
    color: #333;
    font-size: 0.95rem;
    line-height: 1.6;
    margin: 0;
    border-top: 1px solid rgba(0, 179, 199, 0.2);
}

#heroEEGCanvas {
    display: block;
    width: 100%;
    height: 100%;
}

canvas {
    display: block;
    width: 100%;
    height: 100%;
}

/* Feature Grid */
.feature-grid {
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: clamp(2rem, 5vw, 6rem);
    align-items: center;
}

/* Marquee Section - Optimized for Performance */
.marquee_section {
    padding: 0;
    background: var(--g-bg-dark);
    overflow: hidden;
    position: relative;
    border-top: 1px solid rgba(0, 179, 199, 0.1);
    border-bottom: 1px solid rgba(0, 179, 199, 0.1);
    /* Force GPU acceleration */
    transform: translateZ(0);
    backface-visibility: hidden;
}

.marquee_track {
    display: flex;
    padding: 1.5rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.03);
    /* GPU acceleration */
    transform: translateZ(0);
}

.marquee_track:last-child {
    border-bottom: none;
}

.marquee_inner {
    display: flex;
    align-items: center;
    gap: 2rem;
    white-space: nowrap;
    animation: marqueeLeft 40s linear infinite;
    /* GPU optimization */
    will-change: transform;
    transform: translateZ(0);
    backface-visibility: hidden;
}

.marquee_track--right .marquee_inner {
    animation: marqueeRight 40s linear infinite;
}

.marquee_tag {
    font-size: clamp(1.2rem, 2.5vw, 2rem);
    font-weight: 700;
    padding: 0.75rem 2rem;
    background: rgba(0, 179, 199, 0.1);
    border: 2px solid rgba(0, 179, 199, 0.3);
    border-radius: 50px;
    color: rgba(255, 255, 255, 0.95);
    text-shadow: 0 0 20px rgba(0, 179, 199, 0.6);
    /* Simplified transition - no transform on hover to reduce repaints */
    transition: background 0.3s ease, border-color 0.3s ease;
    /* GPU acceleration */
    transform: translateZ(0);
}

.marquee_tag:hover {
    background: rgba(0, 179, 199, 0.2);
    border-color: var(--primary);
}

.marquee_sep {
    color: var(--primary);
    font-size: 1.5rem;
    opacity: 0.3;
    /* Removed blinking animation to improve performance */
}

/* Removed all animation-delay rules for .marquee_sep */

/* Simplified animation - removed blinkRandom to reduce CPU usage */

/* Technology Gallery (Fancybox) - Staggered Layout */

/* Custom Fancybox - Background mờ thay vì đen */
.fancybox__backdrop {
    background: rgba(15, 20, 25, 0.75) !important;
    backdrop-filter: blur(20px) !important;
    -webkit-backdrop-filter: blur(20px) !important;
}

.fancybox__container {
    --fancybox-bg: transparent !important;
}

.fancybox__slide {
    padding: 20px !important;
}

.fancybox__content {
    background: rgba(255, 255, 255, 0.95) !important;
    border-radius: 15px !important;
    box-shadow: 0 20px 60px rgba(0, 179, 199, 0.3) !important;
}

.fancybox__caption {
    /* background: linear-gradient(180deg, transparent, rgba(0, 179, 199, 0.9)) !important; */
    color: white !important;
    font-weight: 600 !important;
}

.tech-gallery-staggered {
    position: relative;
    width: 100%;
    max-width: 650px;
    height: auto;
    min-height: 500px;
    perspective: 1000px;
}

.gallery-item {
    position: absolute;
    display: block;
    overflow: hidden;
    border-radius: 20px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    border: 2px solid rgba(255, 255, 255, 0.9);
    background: #f5f5f5;
}

.gallery-item::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 18px;
    padding: 2px;
    background: rgba(0, 0, 0, 0.05);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.3s;
}

.gallery-item:hover::before {
    opacity: 1;
}

.gallery-item:hover {
    transform: translateY(-15px) scale(1.08) rotateZ(2deg);
    box-shadow: 0 25px 70px rgba(0, 0, 0, 0.2),
                0 10px 30px rgba(0, 0, 0, 0.15);
    border-color: rgba(255, 255, 255, 1);
    z-index: 20 !important;
}

/* Staggered positions - giống ảnh gốc */
.gallery-item.item-1 {
    top: 0;
    left: 0;
    width: 50%;
    aspect-ratio: 16/9;
    z-index: 4;
    transform: rotate(-2deg);
}

.gallery-item.item-2 {
    top: 10px;
    right: 0;
    width: 47%;
    aspect-ratio: 16/9;
    z-index: 3;
    transform: rotate(1deg);
}

.gallery-item.item-3 {
    bottom: 90px;
    left: 20px;
    width: 45%;
    aspect-ratio: 16/9;
    z-index: 2;
    transform: rotate(-1deg);
}

.gallery-item.item-4 {
    bottom: 0;
    right: 30px;
    width: 52%;
    aspect-ratio: 16/9;
    z-index: 5;
    transform: rotate(2deg);
}

.gallery-item:hover {
    transform: translateY(-15px) scale(1.08) rotate(0deg) !important;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    display: block;
    transition: transform 0.5s ease, filter 0.3s ease;
    filter: brightness(0.95) contrast(1.05);
}

.gallery-item:hover img {
    transform: scale(1.15);
    filter: brightness(1.05) contrast(1.1);
}

.gallery-overlay {
    position: absolute;
    inset: 0;
    background: rgba(255, 255, 255, 0.95);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.4s ease;
    backdrop-filter: blur(5px);
    pointer-events: none; /* Không bắt sự kiện khi ẩn */
}

.gallery-item:hover .gallery-overlay {
    opacity: 1;
    pointer-events: auto; /* Chỉ bắt sự kiện khi hiển thị */
}

.gallery-overlay i {
    color: #333;
    font-size: 3rem;
    transform: scale(0.3) rotate(180deg);
    transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.gallery-item:hover .gallery-overlay i {
    transform: scale(1) rotate(0deg);
}

/* Gallery hint text */
.gallery-hint {
    margin-top: 1.5rem;
    text-align: center;
    color: rgba(0, 0, 0, 0.6);
    font-size: 1rem;
    font-weight: 600;
    animation: pulseHint 2.5s ease-in-out infinite;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.gallery-hint i {
    margin-right: 0.75rem;
    color: #333;
    animation: pointFinger 1.5s ease-in-out infinite;
}

@keyframes pulseHint {
    0%, 100% { 
        opacity: 0.7;
        transform: translateY(0);
    }
    50% { 
        opacity: 1;
        transform: translateY(-3px);
    }
}

@keyframes pointFinger {
    0%, 100% { transform: translateX(0); }
    50% { transform: translateX(5px); }
}

@media (max-width: 768px) {
    .tech-gallery-staggered {
        height: 500px;
        max-width: 100%;
    }
    
    .gallery-item.item-1,
    .gallery-item.item-2,
    .gallery-item.item-3,
    .gallery-item.item-4 {
        transform: rotate(0deg);
    }
    
    .gallery-item.item-1 {
        width: 60%;
        height: 32%;
    }
    
    .gallery-item.item-2 {
        width: 50%;
        height: 35%;
    }
    
    .gallery-item.item-3 {
        width: 48%;
        height: 33%;
        bottom: 100px;
    }
    
    .gallery-item.item-4 {
        width: 56%;
        height: 38%;
    }
}

@keyframes marqueeLeft {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

@keyframes marqueeRight {
    0% { transform: translateX(-50%); }
    100% { transform: translateX(0); }
}

/* Stats */
.impact-stats-main-wapper {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin: 2rem 0;
}

.impact-stats-wrapper {
    padding: 2.5rem;
    background: white;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 179, 199, 0.08);
    transition: all 0.4s ease;
    border: 2px solid transparent;
}

.impact-stats-wrapper:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 50px rgba(0, 179, 199, 0.3);
    border-color: var(--primary);
}

.stat-number {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 0.5rem;
    background: var(--g-cta);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Footer */
footer {
    background: var(--g-bg-dark);
    color: white;
    padding: 5rem clamp(1rem, 2.86vw, 3rem) 2rem;
    border-top: 1px solid rgba(0, 179, 199, 0.2);
    position: relative;
    z-index: 10;
}

.uui-footer01_top-wrapper {
    display: grid;
    grid-template-columns: 1.5fr 3fr;
    gap: 4rem;
    max-width: 1400px;
    margin: 0 auto 3rem;
}

.uui-footer01_menu-wrapper {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 3rem;
}

.uui-footer01_link-list-heading {
    font-weight: 700;
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    color: #ffffff;
}

.uui-footer01_link {
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
    display: block;
    margin-bottom: 0.75rem;
    transition: all 0.3s ease;
    font-size: 0.95rem;
}

.uui-footer01_link:hover {
    color: var(--primary);
    padding-left: 5px;
}

.uui-footer01_bottom-wrapper {
    max-width: 1400px;
    margin: 0 auto;
    padding-top: 3rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.9rem;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes lineExpand {
    to {
        transform: scaleX(1);
    }
}

@keyframes floatCanvas {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-15px);
    }
}

/* Fade-in Observer */
.fade-in-section {
    opacity: 0;
    transform: translateY(50px);
    transition: opacity 1s ease, transform 1s ease;
}

.fade-in-section.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive */
@media (max-width: 991px) {
    :root { --nav-height: 72px; }
    .hero-grid,
    .feature-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .canvas-container, .hero-gif {
        height: 450px;
    }

    .nav-toggle {
    display: inline-flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
    z-index: 1200; /* cao hơn panel */
    position: relative;
    }

    .nav-menu-2 {
        display: flex;
        position: fixed;
        top: var(--nav-height);
        right: 8px;
        left: 8px;
        padding: 16px;
        background: rgba(255,255,255,0.98);
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
        border: 1px solid rgba(0, 179, 199, 0.15);
        border-top: none; /* liền mạch với thanh nav */
        border-radius: 0 0 16px 16px; /* bo góc dưới */
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
        flex-direction: column;
        gap: 8px;
        z-index: 1100;
        max-height: calc(100vh - var(--nav-height));
        overflow-y: auto;
        padding-right: 80px; /* chừa chỗ cho nút X */
        /* animation state - hidden */
        opacity: 0;
        visibility: hidden;
        pointer-events: none;
        transform: translateY(-8px) scale(0.98);
        transition: opacity .28s ease, transform .28s ease, visibility .28s ease;
    }

    .nav-menu-2.open {
        opacity: 1;
        visibility: visible;
        pointer-events: auto;
        transform: translateY(0) scale(1);
    }

    .nav_wrap.scrolled .nav-menu-2 {
        background: rgba(246, 248, 252, 0.98);
    }

    .nav-menu-2 .button_link,
    .nav-menu-2 .contact-us-button {
        width: 100%;
        justify-content: flex-start;
    }

    .nav-menu-2 .lang-toggle {
        width: auto;
        align-self: center;
        justify-content: center;
        border-radius: 50px;
        margin-top: 0.5rem;
        min-width: 56px;
    }

    /* giảm logo và tăng khoảng cách top cho đẹp hơn ở mobile */
    .nav_logo_img { height: 60px; }

    .impact-stats-main-wapper {
        grid-template-columns: 1fr;
    }

    .uui-footer01_top-wrapper {
        grid-template-columns: 1fr;
    }

    .uui-footer01_menu-wrapper {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

@media (max-width: 768px) {
    .container-wrapper {
        min-height: auto;
        padding: 4rem 1.5rem;
    }

    .marquee_panel {
        padding: 0 2rem;
    }
}

/* ========== Technology Process List Styles ========== */
.tech-process-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin: 2rem 0;
}

.tech-step {
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    max-width: 100%;
    contain: layout paint;
}

.tech-step-header {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 1.5rem 2rem;
    background: transparent;
    border-radius: 20px;
    border: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    max-width: 100%;
    overflow: hidden;
    transform-origin: left center;
    width: 100%;
    box-sizing: border-box;
}

.tech-step:hover .tech-step-header {
    /* transform: translateX(4px); */
    box-shadow: 0 8px 30px rgba(0, 179, 199, 0.1);
    border: 2px solid rgba(0, 179, 199, 0.2);
}

.tech-step.active .tech-step-header {
    background: white;
    /* transform: scale(1.05); */
    box-shadow: 0 12px 40px rgba(0, 179, 199, 0.2);
    border: 2px solid var(--primary);
}

/* Grid pattern overlay for active state */
.tech-step.active::before {
    content: '';
    position: absolute;
    inset: 0;
    background: 
        repeating-linear-gradient(
            0deg,
            rgba(0, 179, 199, 0.03) 0px,
            rgba(0, 179, 199, 0.03) 1px,
            transparent 1px,
            transparent 20px
        ),
        repeating-linear-gradient(
            90deg,
            rgba(0, 179, 199, 0.03) 0px,
            rgba(0, 179, 199, 0.03) 1px,
            transparent 1px,
            transparent 20px
        );
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.3s ease;
    border-radius: 20px;
}

.tech-step.active::before {
    opacity: 1;
}

.tech-step-icon {
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 179, 199, 0.1);
    border-radius: 14px;
    transition: all 0.3s ease;
}

.tech-step.active .tech-step-icon {
    background: var(--primary);
    transform: scale(1.2);
}

.tech-step-icon svg {
    color: var(--primary);
    transition: color 0.3s ease;
}

.tech-step.active .tech-step-icon svg {
    color: white;
}

.tech-step-content {
    flex: 1;
    min-width: 0; /* allow text to wrap inside flex container */
}

.tech-step-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: #2a2a2a;
    margin-bottom: 0.35rem;
    transition: color 0.3s ease;
    overflow-wrap: anywhere;
    word-break: break-word;
}

.tech-step.active .tech-step-title {
    color: var(--primary);
    font-weight: 700;
}

.tech-step-desc {
    font-size: 0.95rem;
    color: #666;
    line-height: 1.5;
    margin: 0;
    padding-left: 0;
    overflow-wrap: anywhere;
    word-break: break-word;
}

.tech-step-indicator {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-left: auto;
    padding-left: 1rem;
}

.step-number {
    font-size: 2rem;
    font-weight: 700;
    color: rgba(0, 179, 199, 0.15);
    transition: all 0.3s ease;
}

.tech-step.active .step-number {
    color: var(--primary);
    transform: scale(1.2);
}

/* Technology Image Display */
.tech-image-display {
    position: sticky;
    top: 120px;
    width: 100%;
    aspect-ratio: 16/9;
    border-radius: 16px;
    overflow: hidden;
    background: linear-gradient(135deg, #f5f5f5 0%, #e8e8e8 100%);
    box-shadow: 0 25px 70px rgba(0, 179, 199, 0.2);
    border: 3px solid rgba(0, 179, 199, 0.3);
    box-sizing: border-box;
    transition: all 0.3s ease;
    padding: 0;
    margin: 0;
    display: block;
}

.tech-image-display:hover {
    border-color: var(--primary);
    box-shadow: 0 30px 80px rgba(0, 179, 199, 0.3);
}

/* Shimmer loading effect */
.tech-image-display::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.3),
        transparent
    );
    animation: shimmerLoading 2s infinite;
    z-index: 2;
}

@keyframes shimmerLoading {
    0% {
        left: -100%;
    }
    100% {
        left: 100%;
    }
}

.tech-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    opacity: 0;
    transition: opacity 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    transform: scale(1);
    display: block;
    margin: 0;
    padding: 0;
}

.tech-image.active {
    opacity: 1;
    z-index: 1;
    transform: scale(1);
    transition: opacity 0.5s cubic-bezier(0.4, 0, 0.2, 1), 
                transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Image loaded state */
.tech-image[data-loaded="true"].active {
    animation: fadeInImage 0.6s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

@keyframes fadeInImage {
    from {
        opacity: 0;
        transform: scale(1.05);
        filter: blur(4px);
    }
    to {
        opacity: 1;
        transform: scale(1);
        filter: blur(0);
    }
}

/* Hero gif wrapper - remove extra padding */
.hero-gif {
    position: relative;
    width: 100%;
    height: auto;
    padding: 0;
    margin: 0;
}

.our-technology-section .hero-gif {
    position: relative;
    height: 100%;
}

/* Responsive for Tech Process */
@media (max-width: 991px) {
    .tech-process-list {
        margin: 1.5rem 0;
    }

    .tech-step-header {
        padding: 1.25rem 1.5rem;
        gap: 1rem;
    }

    .tech-step-icon {
        width: 40px;
        height: 40px;
    }

    .tech-step-title {
        font-size: 1.1rem;
    }

    .tech-step-desc {
        font-size: 0.9rem;
    }

    .step-number {
        font-size: 1.5rem;
    }

    .tech-image-display {
        position: relative;
        top: auto;
        width: 100%;
        max-width: 100%;
        aspect-ratio: 16/9;
        min-height: auto;
        margin-top: 1.25rem;
        border-width: 2px;
        border-radius: 12px;
        box-shadow: 0 15px 40px rgba(0, 179, 199, 0.18);
    }
}

/* Khôi phục hiệu ứng sticky cho tablet để có cảm giác kéo ảnh xuống */
@media (min-width: 768px) and (max-width: 991px) {
    .our-technology-section .tech-image-display {
        position: sticky;
        top: 90px;
        margin-top: 0;
    }
}

@media (max-width: 768px) {
    .tech-step:hover .tech-step-header,
    .tech-step.active .tech-step-header {
        transform: none;
    }

    .step-number {
        display: none;
    }

    .tech-image-display {
        width: 100%;
        max-width: 100%;
        aspect-ratio: 16/9;
        min-height: auto;
        border-width: 2px;
        border-radius: 12px;
    }

    /* shrink active border a bit to avoid visual clipping on tiny widths */
    .tech-step.active .tech-step-header {
        border-width: 1.5px;
    }
}

/* Tắt hoàn toàn hiệu ứng sticky ở màn điện thoại để tránh cột dọc kéo dài */
@media (max-width: 767px) {
    .our-technology-section .hero-gif,
    .tech-image-display {
        position: relative !important;
        top: auto !important;
    }
}

/* Additional responsiveness for Our Technology to avoid overflow */
@media (max-width: 1200px) {
    #technology .feature-grid {
        align-items: start;
    }

    .tech-image-display {
        top: 90px;
    }

    /* Disable scaling to prevent overflow on medium screens */
    .tech-step.active .tech-step-header {
        transform: none;
        box-shadow: 0 8px 28px rgba(0, 179, 199, 0.18);
    }
}

@media (max-width: 576px) {
    .tech-step-header {
        padding: 0.85rem 0.9rem;
        gap: 0.65rem;
        width: 100%;
        max-width: 100%;
    }

    .tech-step-desc {
        padding-left: 0;
    }

    .tech-image-display {
        width: 100%;
        max-width: 100%;
        aspect-ratio: 16/9;
        min-height: auto;
        border-width: 2px;
        border-radius: 12px;
        box-shadow: 0 10px 28px rgba(0, 179, 199, 0.15);
    }

    .tech-step-icon {
        width: 36px;
        height: 36px;
    }

    .tech-step-title {
        font-size: 1.05rem;
    }

    .tech-step-desc {
        font-size: 0.92rem;
    }

    /* tuyệt đối không scale ở mobile nhỏ */
    .tech-step.active .tech-step-header {
        transform: none;
        box-shadow: 0 6px 22px rgba(0, 179, 199, 0.14);
    }
}

/* Very small screens fix (<=400px) */
@media (max-width: 400px) {
    .tech-step-header {
        padding: 0.75rem 0.8rem;
        gap: 0.5rem;
    }

    .tech-step-icon {
        width: 32px;
        height: 32px;
    }

    .tech-step-content {
        min-width: 0;
    }

    .tech-step-title,
    .tech-step-desc {
        overflow-wrap: anywhere;
        word-break: break-word;
    }
}

/* Hero gif wrapper for sticky positioning */
.hero-gif {
    position: relative;
    width: 100%;
    height: auto;
}

.our-technology-section .hero-gif {
    position: relative;
    height: 100%;
    border-radius: 0;
    box-shadow: none;
    border: none;
    background: transparent;
    animation: none;
    overflow: visible;
    padding: 0;
    margin: 0;
}

/* Ensure the whole technology section never creates horizontal overflow */
.our-technology-section,
#technology .feature-grid,
#technology .hero-left-container {
    max-width: 100%;
    overflow-x: hidden;
}

.our-technology-section .hero-gif:hover {
    transform: none;
    box-shadow: none;
}

@media (min-width: 992px) {
    /* Bật lại sticky cho ảnh ở desktop */
    .our-technology-section,
    #technology .feature-grid,
    #technology .hero-left-container {
        overflow: visible; /* để sticky hoạt động mượt */
    }

    .our-technology-section .hero-gif {
        position: sticky;
        top: 100px;
        height: fit-content;
    }
}


.marquee_section{
  position: relative;
  padding: 2.25rem 0;
  background: var(--g-bg-dark);
  overflow: hidden;
  border-top: 1px solid rgba(0,179,199,0.18);
  border-bottom: 1px solid rgba(0,179,199,0.18);
  isolation: isolate;
}
.marquee_section::before,
.marquee_section::after{
  content:"";
  position:absolute; inset:0 auto auto 0;
  width:100%; height:10px; z-index:2;
  background: linear-gradient(90deg, transparent, rgba(0,179,199,.18), transparent);
  filter: blur(8px); opacity:.7;
}
.marquee_section::after{
  top:auto; bottom:0;
  background: linear-gradient(90deg, transparent, rgba(107,107,255,.18), transparent);
}

.marquee_overlay{
  position:absolute; inset:-30% -10%;
  background:
    radial-gradient(70% 60% at 50% 50%, rgba(0,179,199,.20), transparent 60%),
    radial-gradient(50% 40% at 70% 30%, rgba(107,107,255,.18), transparent 60%),
    radial-gradient(40% 35% at 25% 70%, rgba(255,140,66,.10), transparent 60%);
  pointer-events:none; z-index:0; filter: blur(20px);
}

/* track rows */
.marquee_track{
  position: relative;
  display:block; width:100%;
  mask-image: linear-gradient(to right, transparent, #000 10%, #000 90%, transparent);
  -webkit-mask-image: linear-gradient(to right, transparent, #000 10%, #000 90%, transparent);
}
.marquee_track + .marquee_track{ margin-top: .75rem; }

.marquee_inner{
  display:flex; gap:1.25rem; align-items:center;
  white-space:nowrap; will-change: transform;
  animation: marqueeLeft 26s linear infinite;
}
.marquee_track--right .marquee_inner{
  animation: marqueeRight 32s linear infinite;
}

.marquee_tag{
  display:inline-flex; align-items:center; gap:.5rem;
  padding:.6rem 1rem;
  border-radius: 999px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(0,179,199,0.25);
  color: rgba(255,255,255,.95);
  font-weight: 600; letter-spacing:.2px;
  text-transform: none; font-size: clamp(.9rem, 1.5vw, 1.05rem);
  box-shadow: 0 0 0 0 rgba(0,179,199,.0), inset 0 0 20px rgba(0,179,199,.08);
  transition: transform .25s ease, box-shadow .25s ease, background .25s ease;
}
.marquee_tag:hover{
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(0,179,199,.25);
  background: rgba(0,179,199,.12);
}

.marquee_sep{
  color: rgba(255,255,255,.35);
  font-weight:700;
  margin: 0 .25rem;
}

/* keyframes */
@keyframes marqueeLeft{
  from { transform: translateX(0%); }
  to   { transform: translateX(-50%); }
}
@keyframes marqueeRight{
  from { transform: translateX(-50%); }
  to   { transform: translateX(0%); }
}

/* Reduced motion accessibility */
@media (prefers-reduced-motion: reduce){
  .marquee_inner{ animation: none; }
}
    .impact-stats-wrapper {
  position: relative;
  overflow: hidden;
}

.impact-stats-wrapper::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 20px;
  background: radial-gradient(circle at 50% 50%, rgba(0,179,199,0.15), transparent 70%);
  opacity: 0;
  animation: pulseGlow 4s ease-in-out infinite;
}

@keyframes pulseGlow {
  0%, 100% { opacity: 0; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.2); }
}
#impact {
  position: relative;
  overflow: hidden;
}

#impact::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(0,179,199,0.1), rgba(107,107,255,0.08), rgba(255,140,66,0.1));
  background-size: 300% 300%;
  animation: moveBg 12s ease infinite;
  z-index: 0;
}

.impact-section {
  position: relative;
  z-index: 1;
}

@keyframes moveBg {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}
.impact-stats-main-wapper {
  position: relative;
}

.impact-stats-main-wapper::before {
  content: "";
  position: absolute;
  top: 25%;
  left: 20%;
  width: 60%;
  height: 50%;
  border: 1px dashed rgba(0,179,199,0.2);
  border-radius: 50%;
  filter: blur(1px);
  z-index: 0;
  animation: spinNet 20s linear infinite;
}

@keyframes spinNet {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* ========== Custom Scrollbar - Neural Network Style ========== */
::-webkit-scrollbar {
  width: 12px;
  background: linear-gradient(180deg, 
    rgba(14, 15, 18, 0.95), 
    rgba(26, 29, 40, 0.95), 
    rgba(14, 15, 18, 0.95));
}

::-webkit-scrollbar-track {
  background: linear-gradient(180deg, 
    rgba(0, 179, 199, 0.03), 
    rgba(107, 107, 255, 0.03), 
    rgba(255, 140, 66, 0.03));
  border-left: 1px solid rgba(0, 179, 199, 0.1);
  position: relative;
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, 
    rgba(0, 179, 199, 0.8), 
    rgba(107, 107, 255, 0.8),
    rgba(255, 140, 66, 0.8));
  border-radius: 10px;
  border: 2px solid rgba(0, 0, 0, 0.2);
  box-shadow: 
    0 0 10px rgba(0, 179, 199, 0.5),
    0 0 20px rgba(107, 107, 255, 0.3),
    inset 0 0 10px rgba(255, 255, 255, 0.1);
  position: relative;
  animation: scrollPulse 3s ease-in-out infinite;
}

::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, 
    rgba(0, 179, 199, 1), 
    rgba(107, 107, 255, 1),
    rgba(255, 140, 66, 1));
  box-shadow: 
    0 0 15px rgba(0, 179, 199, 0.8),
    0 0 30px rgba(107, 107, 255, 0.5),
    0 0 40px rgba(255, 140, 66, 0.3),
    inset 0 0 15px rgba(255, 255, 255, 0.2);
  animation: scrollPulse 1s ease-in-out infinite;
}

::-webkit-scrollbar-thumb:active {
  background: linear-gradient(180deg, 
    #00B3C7, 
    #6B6BFF,
    #FF8C42);
  box-shadow: 
    0 0 20px rgba(0, 179, 199, 1),
    0 0 40px rgba(107, 107, 255, 0.8),
    inset 0 0 20px rgba(255, 255, 255, 0.3);
}

/* Animated scrollbar pulse */
@keyframes scrollPulse {
  0%, 100% {
    filter: brightness(1);
  }
  50% {
    filter: brightness(1.2);
  }
}

/* Firefox scrollbar */
* {
  scrollbar-width: thin;
  scrollbar-color: rgba(0, 179, 199, 0.8) rgba(14, 15, 18, 0.95);
}

/* Scrollbar corner */
::-webkit-scrollbar-corner {
  background: rgba(14, 15, 18, 0.95);
}

/* Custom scroll progress indicator on top */
.scroll-progress-wrapper {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: rgba(0, 0, 0, 0.1);
  z-index: 9998;
  pointer-events: none;
}

.scroll-progress-bar {
  height: 100%;
  background: linear-gradient(90deg, 
    #00B3C7, 
    #6B6BFF,
    #FF8C42,
    #B7F171);
  box-shadow: 
    0 0 10px rgba(0, 179, 199, 0.8),
    0 0 20px rgba(107, 107, 255, 0.5);
  width: 0%;
  transition: width 0.1s ease;
  animation: shimmer 2s ease-in-out infinite;
}

@keyframes shimmer {
  0%, 100% {
    filter: brightness(1) saturate(1);
  }
  50% {
    filter: brightness(1.3) saturate(1.2);
  }
}

/* -------------------------------------------
Scroll Down Button
------------------------------------------- */
.scroll-down-container {
    display: none;
    position: absolute;
    bottom: 60px;
    left: 50%;
    transform: translateX(-50%) scale(0.7);
    align-items: center;
    justify-content: center;
    width: 150px;
    height: 150px;
    z-index: 10;
    opacity: 0.8;
}

.scroll-circle-svg {
    position: absolute;
    width: 100%;
    height: 100%;
    animation: rotateCircle 20s linear infinite;
}

.scroll-circle-svg text {
    fill: var(--primary);
    font-size: 20px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 5px;
}

.scroll-down-arrow {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background: var(--primary);
    border-radius: 50%;
    transition: all 0.4s cubic-bezier(0, 0, 0.3642, 1);
    z-index: 2;
}

.scroll-down-arrow svg {
    transform: rotate(90deg);
    transition: transform 0.4s cubic-bezier(0, 0, 0.3642, 1);
    width: 20px;
    height: 20px;
}

.scroll-down-arrow:hover {
    transform: scale(1.15);
    filter: brightness(110%);
}

.scroll-down-arrow:hover svg {
    transform: rotate(90deg) scale(1.15);
}

.scroll-down-container:hover {
    opacity: 1;
}

@keyframes rotateCircle {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

@media screen and (max-width: 992px) {
    .scroll-down-container {
        display: none;
    }
}

/* -------------------------------------------
Back to Top Button - Vertical Layout
------------------------------------------- */
.back-to-top {
    position: fixed;
    bottom: 60px;
    right: 60px;
    z-index: 1000;
    opacity: 0;
    transform: translateX(30px);
    pointer-events: none;
    transition: all 0.6s cubic-bezier(0, 0, 0.3642, 1);
}

.back-to-top.visible {
    opacity: 1;
    transform: translateX(0);
    pointer-events: all;
}

.back-to-top-link {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
    padding: 20px 15px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border: 2px solid rgba(0, 179, 199, 0.2);
    color: #0a0a0a;
    text-decoration: none;
    border-radius: 50px;
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 3px;
    transition: all 0.4s cubic-bezier(0, 0, 0.3642, 1);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.back-to-top-link svg {
    width: 20px;
    height: 20px;
    transform: rotate(-90deg);
    transition: all 0.4s cubic-bezier(0, 0, 0.3642, 1);
    color: var(--primary);
    order: -1; /* Đưa mũi tên lên trước */
}

.back-to-top-link span {
    writing-mode: vertical-rl;
    text-orientation: mixed;
    white-space: nowrap;
    text-transform: uppercase;
    color: #2a2a2a;
    transition: color 0.4s ease;
}

.back-to-top-link:hover {
    background: white;
    border-color: var(--primary);
    box-shadow: 0 6px 30px rgba(0, 179, 199, 0.4);
    transform: translateY(-3px);
}

.back-to-top-link:hover span {
    color: var(--primary);
}

.back-to-top-link:hover svg {
    transform: rotate(-90deg) translateY(-5px);
    color: var(--primary);
    filter: drop-shadow(0 0 8px rgba(0, 179, 199, 0.6));
}

@media screen and (max-width: 768px) {
    .back-to-top {
        bottom: 30px;
        right: 20px;
    }
    
    .back-to-top-link {
        padding: 15px 12px;
        gap: 10px;
    }
    
    .back-to-top-link span {
        font-size: 9px;
        letter-spacing: 2px;
    }
}

/* ===============================================
   Team Section Styles
   =============================================== */

.team-section {
    padding: 100px 0 120px;
    position: relative;
}

.team-header {
    text-align: center;
    margin-bottom: 60px;
}

.team-subtitle {
    display: block;
    font-size: 0.95rem;
    color: #666;
    margin-bottom: 30px;
    letter-spacing: 1px;
    line-height: 1.6;
}

.team-header .text-center {
    margin: 0 auto;
    max-width: 800px;
}

.team-slider-container {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
    padding: 0 60px;
}

.team-quote-icon {
    position: absolute;
    top: -40px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 60px;
    opacity: 0.15;
    z-index: 1;
    color: var(--green-primary);
}

.team-quote-icon svg {
    width: 100%;
    height: 100%;
}

.team-pagination {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 40px;
    height: 8px;
}

.team-pagination-bullet {
    width: 40px;
    height: 8px;
    background: rgba(0, 0, 0, 0.1);
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.team-pagination-bullet.active {
    background: var(--green-primary);
    width: 60px;
}

.team-nav {
    position: absolute;
    width: 100%;
    top: 50%;
    left: 0;
    transform: translateY(-50%);
    display: flex;
    justify-content: space-between;
    pointer-events: none;
    z-index: 10;
}

.team-nav-btn {
    width: 50px;
    height: 50px;
    border: 2px solid rgba(0, 0, 0, 0.1);
    background: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    pointer-events: all;
}

.team-nav-btn:hover {
    border-color: var(--green-primary);
    background: var(--green-primary);
    box-shadow: 0 4px 20px rgba(183, 241, 113, 0.3);
}

.team-nav-btn:hover svg {
    color: white;
}

.team-nav-btn svg {
    color: #333;
    transition: color 0.3s ease;
}

.team-slider {
    overflow: hidden;
    position: relative;
}

.team-slider-wrapper {
    display: flex;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.team-slide {
    min-width: 100%;
    padding: 0 20px;
}

.team-member-card {
    background: white;
    padding: 60px 50px;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
    text-align: center;
    min-height: 350px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.team-member-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 50px rgba(183, 241, 113, 0.2);
}

.team-member-name {
    font-size: 1.8rem;
    font-weight: 600;
    color: #2a2a2a;
    margin-bottom: 10px;
}

.team-member-role {
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--green-primary);
    margin-bottom: 30px;
    font-weight: 500;
}

.team-member-bio {
    font-size: 1.15rem;
    line-height: 1.8;
    color: #555;
    max-width: 700px;
    margin: 0 auto;
}

/* Responsive Team Section */
@media screen and (max-width: 768px) {
    .team-section {
        padding: 60px 0 80px;
    }

    .team-header .heading-2 {
        font-size: 1.8rem;
    }

    .team-subtitle {
        font-size: 0.85rem;
    }

    .team-slider-container {
        padding: 0 40px;
    }

    .team-member-card {
        padding: 40px 30px;
        min-height: 300px;
    }

    .team-member-name {
        font-size: 1.5rem;
    }

    .team-member-role {
        font-size: 0.85rem;
    }

    .team-member-bio {
        font-size: 1rem;
    }

    .team-nav-btn {
        width: 40px;
        height: 40px;
    }
}

@media screen and (max-width: 480px) {
    .team-slider-container {
        padding: 0 30px;
    }

    .team-member-card {
        padding: 30px 20px;
    }

    .team-nav-btn {
        width: 35px;
        height: 35px;
    }
}

/* ========== Feedback Review Section ========== */
.feedback-section {
    padding: 80px 0;
    text-align: center;
}

.feedback-header {
    margin-bottom: 60px;
}

.feedback-header-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.feedback-title-section {
    flex: 1;
    text-align: center;
}

.feedback-header-link {
    flex-shrink: 0;
    margin-top: 1rem;
}

.feedback-link-button {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 15px rgba(0, 179, 199, 0.3);
    position: relative;
    overflow: hidden;
}

.feedback-link-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.feedback-link-button:hover::before {
    left: 100%;
}

.feedback-link-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 179, 199, 0.4);
    background: linear-gradient(135deg, var(--secondary), var(--primary));
}

.feedback-link-button svg {
    transition: transform 0.3s ease;
}

.feedback-link-button:hover svg {
    transform: translate(2px, -2px);
}

.feedback-subtitle {
    font-size: 1.1rem;
    color: #666;
    margin-top: 1rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

.feedback-grid {
    /* Masonry style columns for equal vertical spacing */
    column-count: 3;
    column-gap: 16px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Layout 2 hàng x 3 cột */
.feedback-grid .testimonial-card:nth-child(1) {
    grid-column: 1;
    grid-row: 1;
}

.feedback-grid .testimonial-card:nth-child(2) {
    grid-column: 2;
    grid-row: 1;
}

.feedback-grid .testimonial-card:nth-child(3) {
    grid-column: 3;
    grid-row: 1;
}

.feedback-grid .testimonial-card:nth-child(4) {
    grid-column: 1;
    grid-row: 2;
}

.feedback-grid .testimonial-card:nth-child(5) {
    grid-column: 2;
    grid-row: 2;
}

.feedback-grid .testimonial-card:nth-child(6) {
    grid-column: 3;
    grid-row: 2;
}

.testimonial-card {
    background: white;
    border-radius: 16px;
    padding: 24px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    border: 1px solid rgba(0, 179, 199, 0.1);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.6s ease forwards, gentleFloat 6s ease-in-out infinite;
    display: inline-block; /* needed for column layout */
    width: 100%;
    margin: 0 0 16px; /* vertical spacing between cards */
    break-inside: avoid; /* prevent column breaks inside cards */
}

@keyframes gentleFloat {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-2px);
    }
}

.testimonial-card[data-delay="0"] { animation-delay: 0.1s; }
.testimonial-card[data-delay="200"] { animation-delay: 0.3s; }
.testimonial-card[data-delay="400"] { animation-delay: 0.5s; }
.testimonial-card[data-delay="600"] { animation-delay: 0.7s; }
.testimonial-card[data-delay="800"] { animation-delay: 0.9s; }
.testimonial-card[data-delay="1000"] { animation-delay: 1.1s; }

.testimonial-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--secondary), var(--accent));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.testimonial-card:hover::before {
    opacity: 1;
}

.testimonial-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(0, 179, 199, 0.15);
    border-color: var(--primary);
}

.testimonial-header {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 16px;
    position: relative;
}

.testimonial-avatar {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    font-weight: 600;
    font-size: 0.9rem;
    box-shadow: 0 4px 12px rgba(0, 179, 199, 0.3);
    animation: avatarPulse 3s ease-in-out infinite;
    position: relative;
    overflow: hidden;
}

.testimonial-avatar::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transform: rotate(45deg);
    animation: avatarShine 4s linear infinite;
}

@keyframes avatarPulse {
    0%, 100% {
        transform: scale(1);
        box-shadow: 0 4px 12px rgba(0, 179, 199, 0.3);
    }
    50% {
        transform: scale(1.05);
        box-shadow: 0 6px 20px rgba(0, 179, 199, 0.5);
    }
}

@keyframes avatarShine {
    0% {
        transform: rotate(45deg) translateX(-100%);
    }
    100% {
        transform: rotate(45deg) translateX(100%);
    }
}

.avatar-placeholder {
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.testimonial-info {
    flex: 1;
    text-align: left;
}

.testimonial-name {
    font-size: 1.1rem;
    font-weight: 600;
    color: #2a2a2a;
    margin: 0 0 4px 0;
    line-height: 1.3;
}

.testimonial-title {
    font-size: 0.9rem;
    color: #666;
    margin: 0;
    line-height: 1.4;
}

.testimonial-link {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 1;
    transition: all 0.3s ease;
    animation: floatUpDown 3s ease-in-out infinite;
}

@keyframes floatUpDown {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-3px);
    }
}

.testimonial-link a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    color: var(--primary);
    text-decoration: none;
    border-radius: 50%;
    background: rgba(0, 179, 199, 0.15);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    animation: pulseGlow 2s ease-in-out infinite;
}

.testimonial-link a::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transform: translateX(-100%);
    transition: transform 0.6s ease;
}

.testimonial-link a:hover::before {
    transform: translateX(100%);
}

.testimonial-link a:hover {
    background: var(--primary);
    color: white;
    transform: scale(1.15);
    box-shadow: 0 6px 20px rgba(0, 179, 199, 0.4);
    animation: none;
}

.testimonial-link a svg {
    transition: transform 0.3s ease;
    animation: rotateIcon 4s linear infinite;
}

.testimonial-link a:hover svg {
    transform: rotate(360deg);
    animation: none;
}

@keyframes pulseGlow {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(0, 179, 199, 0.3);
    }
    50% {
        box-shadow: 0 0 0 8px rgba(0, 179, 199, 0.1);
    }
}

@keyframes rotateIcon {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

.testimonial-content {
    text-align: left;
}

.testimonial-content p {
    font-size: 1rem;
    line-height: 1.6;
    color: #444;
    margin: 0;
    font-style: italic;
    position: relative;
    padding-left: 20px;
}

.testimonial-content p::before {
    content: '"';
    position: absolute;
    left: 0;
    top: -8px;
    font-size: 2rem;
    color: var(--primary);
    font-family: serif;
    line-height: 1;
    opacity: 0.3;
}

/* Feedback Section Background */
#feedback {
    background: linear-gradient(135deg, 
        rgba(0, 179, 199, 0.05) 0%, 
        rgba(107, 107, 255, 0.08) 50%,
        rgba(255, 140, 66, 0.05) 100%);
    position: relative;
    overflow: hidden;
}

#feedback::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 20%, rgba(0, 179, 199, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(107, 107, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 60%, rgba(255, 140, 66, 0.08) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

.feedback-section {
    position: relative;
    z-index: 1;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .feedback-grid {
        column-count: 2;
        column-gap: 16px;
    }
    
    /* Layout 3 hàng x 2 cột cho tablet */
    .feedback-grid .testimonial-card:nth-child(1) {
        grid-column: 1;
        grid-row: 1;
    }
    
    .feedback-grid .testimonial-card:nth-child(2) {
        grid-column: 2;
        grid-row: 1;
    }
    
    .feedback-grid .testimonial-card:nth-child(3) {
        grid-column: 1;
        grid-row: 2;
    }
    
    .feedback-grid .testimonial-card:nth-child(4) {
        grid-column: 2;
        grid-row: 2;
    }
    
    .feedback-grid .testimonial-card:nth-child(5) {
        grid-column: 1;
        grid-row: 3;
    }
    
    .feedback-grid .testimonial-card:nth-child(6) {
        grid-column: 2;
        grid-row: 3;
    }
}

@media (max-width: 768px) {
    .feedback-header-content {
        flex-direction: column;
        align-items: center;
        gap: 1.5rem;
    }
    
    .feedback-title-section {
        text-align: center;
    }
    
    .feedback-header-link {
        margin-top: 0;
    }
    
    .feedback-link-button {
        font-size: 0.85rem;
        padding: 10px 16px;
    }
    
    .feedback-grid {
        column-count: 1;
        column-gap: 12px;
        padding: 0 16px;
    }
    .testimonial-card {
        margin: 0 0 12px;
    }
    
    /* Layout 6 hàng x 1 cột cho mobile */
    .feedback-grid .testimonial-card:nth-child(1) {
        grid-column: 1;
        grid-row: 1;
    }
    
    .feedback-grid .testimonial-card:nth-child(2) {
        grid-column: 1;
        grid-row: 2;
    }
    
    .feedback-grid .testimonial-card:nth-child(3) {
        grid-column: 1;
        grid-row: 3;
    }
    
    .feedback-grid .testimonial-card:nth-child(4) {
        grid-column: 1;
        grid-row: 4;
    }
    
    .feedback-grid .testimonial-card:nth-child(5) {
        grid-column: 1;
        grid-row: 5;
    }
    
    .feedback-grid .testimonial-card:nth-child(6) {
        grid-column: 1;
        grid-row: 6;
    }
    
    .testimonial-card {
        padding: 20px;
    }
    
    .testimonial-header {
        gap: 12px;
    }
    
    .testimonial-avatar {
        width: 40px;
        height: 40px;
        font-size: 0.8rem;
    }
    
    .testimonial-name {
        font-size: 1rem;
    }
    
    .testimonial-title {
        font-size: 0.85rem;
    }
    
    .testimonial-content p {
        font-size: 0.95rem;
        padding-left: 16px;
    }
    
    .feedback-subtitle {
        font-size: 1rem;
        padding: 0 20px;
    }
}

@media (max-width: 480px) {
    .feedback-section {
        padding: 60px 0;
    }
    
    .feedback-header {
        margin-bottom: 40px;
    }
    
    .testimonial-card {
        padding: 16px;
    }
    
    .testimonial-content p {
        padding-left: 12px;
    }
    
    .testimonial-content p::before {
        font-size: 1.5rem;
        top: -4px;
    }
}

/* Animation for testimonial cards */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ========== Video Demo Section ========== */
.video-demo-container {
    position: relative;
    width: 100%;
    height: auto;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 25px 70px rgba(0, 179, 199, 0.3),
                0 0 40px rgba(45, 212, 191, 0.2);
    border: 1px solid rgba(45, 212, 191, 0.3);
    transition: transform 0.3s ease;
    background: white;
}

.video-demo-container:hover {
    transform: translateY(-5px);
    box-shadow: 0 30px 80px rgba(0, 179, 199, 0.4),
                0 0 50px rgba(45, 212, 191, 0.3);
}

.video-wrapper {
    position: relative;
    width: 100%;
    aspect-ratio: 16/9;
    background: #000;
    border-radius: 20px 20px 0 0;
    overflow: hidden;
}

.video-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

.video-caption {
    padding: 1rem 1.5rem;
    background: linear-gradient(135deg, rgba(0, 179, 199, 0.1), rgba(107, 107, 255, 0.1));
    color: #333;
    font-size: 0.95rem;
    line-height: 1.6;
    margin: 0;
    border-top: 1px solid rgba(0, 179, 199, 0.2);
}

/* Video Demo Section specific styles */
#video-demo {
    background: linear-gradient(135deg, 
        rgba(107, 107, 255, 0.08) 0%, 
        rgba(0, 179, 199, 0.12) 100%);
    text-align: center;
}

#video-demo .heading-2.blue {
    background: var(--g-ai);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
    display: inline-block;
    padding-bottom: 1rem;
    padding-top: 0.5rem;
    margin-bottom: 3rem;
}

#video-demo .heading-2.blue::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: linear-gradient(90deg, #6B6BFF, transparent);
    border-radius: 2px;
    animation: pulse 2s ease infinite;
}

#video-demo .heading-2.blue::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, #6B6BFF, #00B3C7, transparent);
    border-radius: 2px;
    animation: slideRight 3s ease infinite;
}

#video-demo .video-demo-container {
    max-width: 80%;
    margin: 0 auto;
}

/* EEG Wave Canvas */
#eegWaveCanvas {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 12px;
    background: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 100%);
    box-shadow: 
        0 0 0 1px rgba(255, 255, 255, 0.1),
        0 20px 60px rgba(0, 0, 0, 0.5),
        0 0 80px rgba(0, 179, 199, 0.2);
}

@media screen and (max-width: 768px) {
    .video-modal-content {
        width: 95%;
    }
    
    .video-modal-close {
        top: -45px;
        font-size: 35px;
        width: 45px;
        height: 45px;
    }
}